Avalon GS CR 2585 vs Sylvan Mirage 820 Party Fish: 5-year value retention (64% vs 64%), resale value, and cost of ownership head-to-head. Avalon GS CR 2585 holds its value better.
On five-year value retention the Avalon GS CR 2585 comes out ahead, holding about 64% of its value versus 64% for the Sylvan Mirage 820 Party Fish. Over the first five years the Avalon GS CR 2585 loses roughly $7,663 while the Sylvan Mirage 820 Party Fish loses about $10,625 — a gap near $2,962.
First-year drop is the biggest factor: the Avalon GS CR 2585 sheds about 8% in year one versus 36% for the Sylvan Mirage 820 Party Fish. If you buy used, the steeper early drop is what the original owner absorbs.
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